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Priority claimed from DE19873743564external-prioritypatent/DE3743564A1/en
Priority claimed from DE19883800990external-prioritypatent/DE3800990A1/en
Application filed by Barmag Barmer Maschf, Edelhoff PolytechnikfiledCriticalBarmag Barmer Maschf
Priority claimed from EP88121180Aexternal-prioritypatent/EP0321890B1/en
Application grantedgrantedCritical
Publication of ATE88404T1publicationCriticalpatent/ATE88404T1/en